LAWRENCE SCHIFFMAN: The Significance of Outside the Bible. That is, the forthcoming book by that title (TOC and excerpt here).
While you're ordering it, don't forget to order your copy of Old Testament Pseudepigrapha: More Noncanonical Scriptures, which comes out at the end of this month. (No, really this time!) There is very little overlap between the two works and you really should have both.